<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			span{
				color: pink;
			}
			.nav ul{
				color: blue;
			}			
			.nav ul#ul1 li{
				color:red;
			}

		</style>
	</head>
	<body>
		<div class="nav">
			<ul id="ul1">
				<li><span>有的人活着</span></li>
				<li><span>他已经死了</span></li>
				<li><span>有的人死了</span></li>
				<li><span>他还活着，那也是死了</span></li>
			</ul>
		</div>
	</body>
</html>
